block1.bdf

用来实现VGA发生时序

/*
WARNING: Do NOT edit the input and output ports in this file in a text
editor if you plan to continue editing the block that represents it in
the Block Editor! File corruption is VERY likely to occur.
*/
/*
Copyright (C) 1991-2007 Altera Corporation
Your use of Altera Corporation's design tools, logic functions 
and other software and tools, and its AMPP partner logic 
functions, and any output files from any of the foregoing 
(including device programming or simulation files), and any 
associated documentation or information are expressly subject 
to the terms and conditions of the Altera Program License 
Subscription Agreement, Altera MegaCore Function License 
Agreement, or other applicable license agreement, including, 
without limitation, that your use is for the sole purpose of 
programming logic devices manufactured by Altera and sold by 
Altera or its authorized distributors.  Please refer to the 
applicable agreement for further details.
*/
(header "graphic" (version "1.3"))
(symbol
	(rect 112 64 272 248)
	(text "lpm_fifo_dc0" (rect 44 1 128 17)(font "Arial" (font_size 10)))
	(text "inst" (rect 8 168 25 180)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "data[11..0]" (rect 0 0 60 14)(font "Arial" (font_size 8)))
		(text "data[11..0]" (rect 20 26 80 40)(font "Arial" (font_size 8)))
		(line (pt 0 32)(pt 16 32)(line_width 3))
	)
	(port
		(pt 0 56)
		(input)
		(text "wrreq" (rect 0 0 35 14)(font "Arial" (font_size 8)))
		(text "wrreq" (rect 20 50 55 64)(font "Arial" (font_size 8)))
		(line (pt 0 56)(pt 16 56)(line_width 1))
	)
	(port
		(pt 0 72)
		(input)
		(text "wrclk" (rect 0 0 31 14)(font "Arial" (font_size 8)))
		(text "wrclk" (rect 26 66 57 80)(font "Arial" (font_size 8)))
		(line (pt 0 72)(pt 16 72)(line_width 1))
	)
	(port
		(pt 0 104)
		(input)
		(text "rdreq" (rect 0 0 30 14)(font "Arial" (font_size 8)))
		(text "rdreq" (rect 20 98 50 112)(font "Arial" (font_size 8)))
		(line (pt 0 104)(pt 16 104)(line_width 1))
	)
	(port
		(pt 0 120)
		(input)
		(text "rdclk" (rect 0 0 27 14)(font "Arial" (font_size 8)))
		(text "rdclk" (rect 26 114 53 128)(font "Arial" (font_size 8)))
		(line (pt 0 120)(pt 16 120)(line_width 1))
	)
	(port
		(pt 160 40)
		(output)
		(text "wrfull" (rect 0 0 33 14)(font "Arial" (font_size 8)))
		(text "wrfull" (rect 113 34 146 48)(font "Arial" (font_size 8)))
		(line (pt 160 40)(pt 144 40)(line_width 1))
	)
	(port
		(pt 160 72)
		(output)
		(text "wrusedw[3..0]" (rect 0 0 84 14)(font "Arial" (font_size 8)))
		(text "wrusedw[3..0]" (rect 69 66 153 80)(font "Arial" (font_size 8)))
		(line (pt 160 72)(pt 144 72)(line_width 3))
	)
	(port
		(pt 160 96)
		(output)
		(text "q[11..0]" (rect 0 0 42 14)(font "Arial" (font_size 8)))
		(text "q[11..0]" (rect 105 90 147 104)(font "Arial" (font_size 8)))
		(line (pt 160 96)(pt 144 96)(line_width 3))
	)
	(port
		(pt 160 120)
		(output)
		(text "rdempty" (rect 0 0 46 14)(font "Arial" (font_size 8)))
		(text "rdempty" (rect 102 114 148 128)(font "Arial" (font_size 8)))
		(line (pt 160 120)(pt 144 120)(line_width 1))
	)
	(port
		(pt 160 136)
		(output)
		(text "rdusedw[3..0]" (rect 0 0 80 14)(font "Arial" (font_size 8)))
		(text "rdusedw[3..0]" (rect 73 130 153 144)(font "Arial" (font_size 8)))
		(line (pt 160 136)(pt 144 136)(line_width 3))
	)
	(drawing
		(text "12 bits x 16 words" (rect 68 156 157 168)(font "Arial" ))
		(line (pt 16 16)(pt 144 16)(line_width 1))
		(line (pt 144 16)(pt 144 168)(line_width 1))
		(line (pt 144 168)(pt 16 168)(line_width 1))
		(line (pt 16 168)(pt 16 16)(line_width 1))
		(line (pt 16 84)(pt 144 84)(line_width 1))
		(line (pt 16 148)(pt 144 148)(line_width 1))
		(line (pt 16 66)(pt 22 72)(line_width 1))
		(line (pt 22 72)(pt 16 78)(line_width 1))
		(line (pt 16 114)(pt 22 120)(line_width 1))
		(line (pt 22 120)(pt 16 126)(line_width 1))
	)
)